CN102251860A - Control electrical cabinet as well as vehicle detection system and method adopting same - Google Patents
Control electrical cabinet as well as vehicle detection system and method adopting same Download PDFInfo
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- CN102251860A CN102251860A CN2010101793869A CN201010179386A CN102251860A CN 102251860 A CN102251860 A CN 102251860A CN 2010101793869 A CN2010101793869 A CN 2010101793869A CN 201010179386 A CN201010179386 A CN 201010179386A CN 102251860 A CN102251860 A CN 102251860A
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Abstract
The invention provides a control electrical cabinet as well as a vehicle detection system and method adopting the same. The control electrical cabinet comprises a programmable logic controller, an engine control module and an electronic air throttle body, wherein the engine control module further comprises a device for controlling the opening degree of the electronic air throttle body according to the input simulation signal of the programmable logic controller, a device for reading the signal input of a position sensor of the corresponding electronic air throttle body and a device for calculating the opening degree of the electronic air throttle body. The invention also provides the vehicle detection system adopting the control electrical cabinet and the detection method which is implemented according to the vehicle detection system. The technical scheme provided by the invention is reliable to realize a control technology and has the advantages of low design and manufacture cost and strong application popularity; and the risk and the input of the secondary development of a data bus interface card can be avoided.
Description
Technical field
The present invention relates to vehicle manufacturing technology, relate in particular to the control electronic box that is used for vehicle detection, the vehicle detecting system that adopts this control electronic box and detecting method.
Background technique
In vehicle manufacturing technology, how to make full use of again and manufacture a product, be a focus of auto manufacturing.As everyone knows, make full use of again and manufacture a product, can effectively reduce automobile working service cost, promote the development in automobile consumption market.Especially for parts such as the motor in the vehicle, gearboxes, it is made again, can obtain reliable and stable product, and performance level can reach the level of new product by using professional technique and professional equipment.
It is also important that, when using these power assemblies, need be to the test of testing of its performance and quality.Current, in commercial Application, generally need require to develop special CAN bus interface card to be used for check and test according to reality to these power assemblies.Specifically, need to use the CAN bus interface card of special exploitation and the control module of tested parts to carry out the data necessary exchange, thereby arrive the necessary control requirement, satisfy the quality testing demand that manufactures a product again.
Industrial, the CAN2.0 bus is except being the general international standard definition in physical layer, data link layer, application layer, Internet, or the like open fully carry out the exploitation of bus data storehouse for each producer and software integrated.That is to say that electronics module is realized complicated data transmission and function control by bus.According to conventional method, exploitation CAN bus interface card, the control that needs are realized requires to carry out the bus data parsing, the development cost costliness of software and hardware, the exploitation debugging cycle is long.
Summary of the invention
Risk and input for fear of the secondary development of data bus interface card, consider the Development characteristics of CAN data/address bus, simultaneously, in conjunction with the interface between software and hardware characteristic of automotive electronics parts and module, the invention provides a kind of control electronic box of vehicle detecting system, the vehicle detecting system that adopts this control electronic box and detecting method of being used for.
Specifically, first aspect of the present invention provides a kind of control electronic box that is used for vehicle detecting system, comprise: programmable logic controller (PLC), engine control module and electronic air throttle body, wherein said engine control module is electrically connected with described programmable logic controller (PLC) and described electronic air throttle body respectively, wherein, described programmable logic controller (PLC) further comprises the device that is used for the accelerator pedal position sensor input signal of described engine control module is carried out emulation, wherein, described engine control module further comprises the device that is used for controlling according to the simulate signal of the described programmed logical module of importing the aperture of described electronic air throttle body, be used to read the respective electronic throttle body position transducer the signal input device and be used for and calculate the device of the aperture of described electronic air throttle body.
Preferably, control electronic box according to a first aspect of the invention, wherein said programmable logic controller (PLC) also comprises the analogue signal input/output module.
Preferably, control electronic box according to a first aspect of the invention, wherein said control electronic box further comprises switch power, frequency variator, voltmeter, switch button, contactor, control relay, safety fuse cutout, air-break switch, tutorial light and/or electronic box fan.
Preferably, control electronic box according to a first aspect of the invention, wherein said engine control module links to each other with transmission control module outside being in described control electronic box by the CAN bus.
Preferably, control electronic box according to a first aspect of the invention, wherein said analogue signal input/output module also comprises D/A converter module and analog-to-digital conversion module.
Preferably, control electronic box according to a first aspect of the invention, wherein said D/A converter module is used for converting digital signal to corresponding analogue signal to be used for output.
Preferably, control electronic box according to a first aspect of the invention, the wherein said twisted-pair feeder output that is used for described analogue signal by shielding.
Preferably, control electronic box according to a first aspect of the invention, wherein the analogue signal input/output module has two road voltage-type D/A converter modules.
Second aspect of the present invention provides a kind of vehicle detecting system, and comprising: speed changer comprises transmission control module; With the control electronic box, comprise programmable logic controller (PLC), engine control module and electronic air throttle body, described control electronic box also further comprises engine control module and electronic air throttle body, wherein said engine control module is electrically connected with described programmable logic controller (PLC) and described electronic air throttle body respectively, wherein, described programmable logic controller (PLC) further comprises the device that is used for the accelerator pedal position sensor input signal of described engine control module is carried out emulation, wherein, described engine control module further comprises the device that is used for controlling according to the simulate signal of the described programmed logical module of importing the aperture of described electronic air throttle body, be used to read the respective electronic throttle body position transducer the signal input device and be used for and calculate the device of the aperture of described electronic air throttle body.
Preferably, vehicle detecting system according to a second aspect of the invention, wherein said programmable logic controller (PLC) also comprises the analogue signal input/output module.
Preferably, vehicle detecting system according to a second aspect of the invention, wherein said control electronic box further comprises switch power, frequency variator, voltmeter, switch button, contactor, control relay, safety fuse cutout, air-break switch, tutorial light and/or electronic box fan.
Preferably, vehicle detecting system according to a second aspect of the invention, wherein said engine control module links to each other with transmission control module outside being in described control electronic box by the CAN bus.
Preferably, vehicle detecting system according to a second aspect of the invention, wherein said analogue signal input/output module also comprises D/A converter module and analog-to-digital conversion module.
Preferably, vehicle detecting system according to a second aspect of the invention, wherein said D/A converter module is used for converting digital signal to corresponding analogue signal to be used for output.
Preferably, vehicle detecting system according to a second aspect of the invention, the described analogue signal that wherein is used to export is exported by the twisted-pair feeder of shielding.
Preferably, vehicle detecting system according to a second aspect of the invention, wherein the analogue signal input/output module has two road voltage-type D/A converter modules.
The 3rd aspect of the present invention provides the automobile of the control electronic box of a kind of employing first aspect according to the present invention.
The 4th aspect of the present invention provides the automobile of a kind of employing vehicle detecting system of second aspect according to the present invention.
The 5th aspect of the present invention provides a kind of method that adopts vehicle detecting system that second aspect of the present invention provide that the speed changer of vehicle is detected, comprise: utilize programmable logic controller (PLC) that the accelerator pedal position sensor input signal of described engine control module is carried out emulation, analogue simulation signal according to described programmed logical module, control the aperture of described electronic air throttle body by engine control module, read the signal input of the position transducer of respective electronic throttle body by described engine control module, calculate the aperture of described electronic air throttle body by described engine control module, and pass through the CAN bus and give transmission control module the data transmission about described electronic air throttle body aperture.
Preferably, detecting method according to a fifth aspect of the present invention wherein is converted to analogue signal and output to the digital signal through described programmed logical module emulation by the analogue signal input/output module.
Preferably, detecting method according to a fifth aspect of the present invention further comprises, the output signal of described analogue signal input/output module is selected; Regulate the gain and the biasing of described analogue signal input/output module.
According to control electronic box of the present invention, the vehicle detecting system that adopts this control electronic box and detecting method, need not the special-purpose CAN bus interface card of special exploitation, can reduce manufacture cost effectively with the electronic component of volume production vehicle and control module as the element application in the industrial control equipment of routine.And the interface between software and hardware between the electronic component of application and the control module itself need not secondary development, has improved reliability significantly.In addition, the scheme that proposes according to the present invention can be applied to no industrial control occasion with electronic component and the control module of using on the vehicle as required, and is very flexible.
After reading following detailed description the in detail in conjunction with the accompanying drawing that wherein shows and described exemplary embodiment of the present invention, it will be appreciated by those skilled in the art that these and other target of the present invention, feature and advantage.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 shows the vehicle detecting system of controlling electronic box that comprises according to an embodiment of the invention.
Embodiment
Before in detail explaining any embodiment of the present invention, be to be understood that the present invention its application facet be not limited to propose in the following description or the following drawings shown in the details of structure and the layout of parts.The present invention can also have other embodiments and can be implemented in every way or realize.Similarly, be to be understood that wording used herein and term are intended to explanation and should be counted as qualification.
Fig. 1 shows the control electronic box 100 that is used to carry out vehicle detection according to an embodiment of the invention.In this embodiment, this control electronic box 100 is used for speed changer 200 is detected.Control electronic box 100 and the speed changer 200 common vehicle detecting systems of forming.As shown in Figure 1, control electronic box 100 inside are integrated programmable logic controller (PLC) 104 (PLC).In addition, control electronic box 100 inside can also be integrated with switch power, frequency variator, voltmeter, switch button, contactor, control relay, safety fuse cutout, air-break switch, tutorial light, electronic box fan or the like electric elements (in order more clearly to illustrate the present invention, these elements do not illustrate).
Usually, automatic transmission has such characteristics: transmission control module 202 is in gearbox inside; Relevant hydraulic control valve, solenoid valve and electronics module integrate, and promptly electronics module is handled the output control and the hydraulic pressure detecting switch input signal of solenoid valve, all is integrated in one, can't connect by rigid line to implement control.Automatic transmission has adopted the gear shift technology of clutch to clutch, that is: when upgrading or lowering category operation, according to the control strategy of control module in house software, have two groups of clutches and move simultaneously.The high-speed bus of CAN2.0 is adopted in the PERCOM peripheral communication of gearbox control module.
The add downshift and TCC release and combination control of real vehicle depend primarily on the speed of vehicle driving and the aperture of throttle.The automatic transmission output speed sensor can be sent to the information relevant with the speed of a motor vehicle transmission control module 202.The joint that transmission control module 202 is utilized speed information control gear shift timing, loine pressure and converter clutch with separate.Engine control module (ECM) 106 is control centres of closure final controlling element control (TAC) system.Engine control module is determined driver's intention according to the input of accelerator pedal position sensor, calculates corresponding closure response amount according to the input of throttle position sensor then.Engine control module is by providing pwm voltage to closure final controlling element motor, to realize the closure location.Resulting throttle position (TP) is one of most important input in the shifting of transmission mode logic, and engine control module 106 is passed to transmission control module 202 by CAN bus throttle opening numerical value.Too small throttle position angle can cause shifting up, thereby influences shift mode.Excessive throttle position angle then can cause downshift, thereby influences shift mode.Accelerator pedal position sensor is used for determining the pedal angle.Engine control module provides 5 volts of reference voltage circuits and low reference voltage circuit to each accelerator pedal position sensor.Accelerator pedal position sensor provides and the proportional signal voltage of pedal-displacement to engine control module.The signal voltage of first accelerator pedal position sensor when position of rest increases when pedal is stepped near low reference voltage.The signal voltage of second accelerator pedal position sensor when position of rest also near low reference voltage, increases when pedal is stepped on.First accelerator pedal position sensor is potentiometer-type sensor: 0.13-4.88 volt, 0.3-4.75 volt.Second accelerator pedal position sensor is potentiometer-type sensor: 0.12-2.64 volt, 0.3-4.75 volt.
The purpose that speed changer 200 is detected for the CAN bus that realizes not using special opening, be integrated in the control electronic box 100 with speed changer 200 matching used engine control module 106 and electronic air throttle body (ETC) 102, to substitute the CAN bus interface card that needs special exploitation.
Particularly, as shown in Figure 1, in control electronic box inside, engine control module 106 is electrically connected with programmable logic controller (PLC) 104 and electronic air throttle body 102 respectively.Engine control module 106 also further communicates by CAN bus and transmission control module 202.
Programmable logic controller (PLC) 104 further comprises the device (not shown) that is used for the accelerator pedal position sensor input signal of engine control module 106 is carried out emulation.Engine control module 106 further comprises the device (not shown) that is used for controlling according to the simulate signal of the programmed logical module of importing 106 aperture of electronic air throttle body 102, be used to read the device (not shown) of signal input of the position transducer of respective electronic throttle body 102, and the device (not shown) that is used for and calculates the aperture of electronic air throttle body 102.Above-mentioned unshowned device both can be realized by hardware logic, also can realize by software code.
Particularly, programmable logic controller (PLC) 104 outputs to engine control module 106 with analogue signal such as aanalogvoltage.Engine control module 106 is calculated corresponding closure response amount according to the input signal of accelerator pedal position sensor and the input signal of throttle position sensor, provides pwm voltage to closure final controlling element motor then, so that closure is positioned.Afterwards, engine control module 106 offers transmission control module 202 to the data of relevant closure by the CAN bus.
Analogue signal input/output module 108 by using programmable logic controller 104 with and relevant user program, can carry out emulation to the input signal of the accelerator pedal position sensor (not shown) of engine control module 106.Afterwards, based on the simulate signal that obtains from programmable logic controller 104, engine control module 106 is controlled the aperture of electronic air throttle body 102 voluntarily, and reads the signal input of corresponding throttle position sensor, calculates throttle opening.By the CAN bus between engine control module 106 and the transmission control module 202, transmission control module 202 will be obtained the bus data of the throttle opening of engine control module 106 transmission, and according to the control of the data realization that is obtained to speed changer 200.
Wherein, use the emulation of the input signal of 104 pairs of accelerator pedal position sensors of programmable logic controller generally can so carry out: the digital output signal of programmable logic controller 104 to be converted to aanalogvoltage or electric current, control executing mechanism then by the digital to analog converter in the analogue signal input/output module.In particular, preferably select analogue signal input/output module herein for use with the output of two road voltage-type moduluses.The analogue signal output signal is generally exported signal by the twisted-pair feeder of shielding.
Be in the detection facility control system of controller with programmable logic controller (PLC) 104,,, can also controlling many continually varying analogue signal signals as the opening/stop of variable-frequency motor/speed governing etc. except the control of a large amount of switching value.Programmable logic controller 104 comprises many special functional modules, and the analogue signal input/output module then is wherein a kind of.It also further comprises D/A converter module and analog-to-digital conversion module.For example D/A converter module can convert certain digital signal to corresponding simulating signal (voltage or electric current) and output.This conversion has higher precision.The programming of different certainly programmable controllers is also different with hardware configuration method, and these programmings and hardware configuration method are all to be attached to herein with reference to the mode of quoting.
What need further specify is when the analogue signal of using programmable logic controller 104 is controlled frequency control of motor speed, can select for use following parameter that associated components is configured.
The output signal of analogue signal input/output module 108 generally can select the voltage signal of 0～5V to control, and resolution is then selected the voltage of 2.5mV for use.The gain of analogue signal input/output module 108 can be set at arbitrary value in principle.Yet,, generally select 0～4000 for use if obtain maximum 12 resolution.Herein, 0～4000 digital quantity is corresponding to the output voltage of 0～5V.And communicating by letter of analogue signal input/output module 108 and programmable logic controller 104 then mainly realizes by programming.It mainly comprises the execution control of different passage digital-to-analog conversions, and digital control amount writes analogue signal input/output module or the like.Wherein particularly importantly to the setting of buffer memory.The definition mode of buffer memory can be with reference to corresponding product programming handbook, and these definition modes are all to be attached to herein with reference to the mode of quoting.Control system programming then can by easy adjustment or change according to the instruction of programmable logic controller 104 analogue signal output data such as scope, momentary value and setting value read and write usefulness.For example, that suppose programmable logic controller 104 common AO module correspondences is 0-4000, when configuration is 0.3-5V output, when giving output register 0, is exactly 0.3V output so, when giving register 2000, is exactly 2.65V output.As for the output of real-time and dynamic accelerator pedal position simulate signal, can be by regularly realizing.Time one regularly arrives, and just correspondingly changes the analogue signal setting value.
In addition, an alternative embodiment of the invention also provides the automobile that uses the described control electronic box of the foregoing description.
In addition, further embodiment of the present invention also provides the automobile that uses the described vehicle detecting system of the foregoing description.
According to technological scheme of the present invention, can be with the abundant simplification of designing and developing of the CAN bus interface card of special use, and its control technique realizes reliable, design and manufacture cost is cheap, use highly versatile, can avoid the risk and the input of the secondary development of data bus interface card, be particularly suitable for being applied to that associated vehicle is made into and the designing and developing and making of power assembly detection facility.
Although one exemplary embodiment described above the invention is not restricted to these one exemplary embodiment.Within the spirit and scope of the present invention, these one exemplary embodiment can combined use or each one exemplary embodiment can partly be revised.
Though preferred one exemplary embodiment of the present invention adopts particular term to be described, this description just is used for illustrative purposes.Should be understood that, in the spirit and scope that do not break away from claim, can make various modifications and conversion claims.
Claims (21)
1. control electronic box that is used for vehicle detecting system comprises:
Programmable logic controller (PLC),
It is characterized in that,
Described control electronic box also further comprises engine control module and electronic air throttle body, and wherein said engine control module is electrically connected with described programmable logic controller (PLC) and described electronic air throttle body respectively,
Wherein, described programmable logic controller (PLC) further comprises the device that is used for the accelerator pedal position sensor input signal of described engine control module is carried out emulation,
Wherein, described engine control module further comprises the device that is used for controlling according to the simulate signal of the described programmed logical module of importing the aperture of described electronic air throttle body, be used to read the respective electronic throttle body position transducer the signal input device and be used for and calculate the device of the aperture of described electronic air throttle body.
2. control electronic box as claimed in claim 1 is characterized in that described programmable logic controller (PLC) also comprises the analogue signal input/output module.
3. control electronic box as claimed in claim 1 is characterized in that, described control electronic box further comprises switch power, frequency variator, voltmeter, switch button, contactor, control relay, safety fuse cutout, air-break switch, tutorial light and/or electronic box fan.
4. control electronic box as claimed in claim 1 is characterized in that, described engine control module links to each other with transmission control module outside being in described control electronic box by the CAN bus.
5. control electronic box as claimed in claim 2 is characterized in that, described analogue signal input/output module also comprises D/A converter module and analog-to-digital conversion module.
6. control electronic box as claimed in claim 5 is characterized in that, wherein said D/A converter module is used for converting digital signal to corresponding analogue signal to be used for output.
7. control electronic box as claimed in claim 6 is characterized in that, the described analogue signal that wherein is used to export is exported by the twisted-pair feeder of shielding.
8. control electronic box as claimed in claim 2 is characterized in that, wherein the analogue signal input/output module has two road voltage-type D/A converter modules.
9. vehicle detecting system comprises:
Speed changer comprises transmission control module; With
The control electronic box, comprise programmable logic controller (PLC), engine control module and electronic air throttle body, described control electronic box also further comprises engine control module and electronic air throttle body, wherein said engine control module is electrically connected with described programmable logic controller (PLC) and described electronic air throttle body respectively
Wherein, described programmable logic controller (PLC) further comprises the device that is used for the accelerator pedal position sensor input signal of described engine control module is carried out emulation,
Wherein, described engine control module further comprises the device that is used for controlling according to the simulate signal of the described programmed logical module of importing the aperture of described electronic air throttle body, be used to read the respective electronic throttle body position transducer the signal input device and be used for and calculate the device of the aperture of described electronic air throttle body.
10. vehicle detecting system as claimed in claim 9 is characterized in that, described engine control module links to each other with described transmission control module by the CAN bus.
11. vehicle detecting system as claimed in claim 9 is characterized in that, described programmable logic controller (PLC) also comprises the analogue signal input/output module.
12. vehicle detecting system as claimed in claim 9, it is characterized in that described control electronic box further comprises switch power, frequency variator, voltmeter, switch button, contactor, control relay, safety fuse cutout, air-break switch, tutorial light and/or electronic box fan.
13. vehicle detecting system as claimed in claim 11 is characterized in that, described analogue signal input/output module also comprises D/A converter module and analog-to-digital conversion module.
14. vehicle detecting system as claimed in claim 13 is characterized in that, wherein said D/A converter module is used for converting digital signal to corresponding analogue signal to be used for output.
15. vehicle detecting system as claimed in claim 14 is characterized in that, the described analogue signal that wherein is used to export is exported by the twisted-pair feeder of shielding.
16. vehicle detecting system as claimed in claim 11 is characterized in that, wherein the analogue signal input/output module comprises two road voltage-type D/A converter modules.
17. automobile that adopts control electronic box as claimed in claim 1.
18. automobile that adopts vehicle detecting system as claimed in claim 11.
19. one kind is adopted vehicle detecting system as claimed in claim 11 to the method that the speed changer of vehicle detects, comprising:
Utilize programmable logic controller (PLC) that the accelerator pedal position sensor input signal of engine control module is carried out emulation,
According to the simulate signal of described programmed logical module, by the aperture of engine control module control electronic air throttle body,
Read the signal input of the position transducer of respective electronic throttle body by described engine control module,
Calculate the aperture of described electronic air throttle body by described engine control module, and
Give transmission control module the data transmission about described electronic air throttle body aperture by the CAN bus.
20. method as claimed in claim 19 is characterized in that, by the analogue signal input/output module digital signal through described programmed logical module emulation is converted to analogue signal and output.
21. method as claimed in claim 20 further comprises, the output signal of described analogue signal input/output module is selected; Regulate the gain and the biasing of described analogue signal input/output module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101793869A CN102251860A (en) | 2010-05-20 | 2010-05-20 | Control electrical cabinet as well as vehicle detection system and method adopting same |
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| CN2010101793869A CN102251860A (en) | 2010-05-20 | 2010-05-20 | Control electrical cabinet as well as vehicle detection system and method adopting same |
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| CN102251860A true CN102251860A (en) | 2011-11-23 |
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| CN109407553A (en) * | 2018-12-19 | 2019-03-01 | 海马汽车有限公司 | Speed Control emulation mode and device |
| CN111022524A (en) * | 2019-12-19 | 2020-04-17 | 吉林东工汽车电子有限公司 | Automatic control clutch system and control method thereof |
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Application publication date: 20111123 |